Cell-case



(No Model.) I W; HW'ILLIAMS.

7 CELL CASE.

Patented'Nov; 5, 1895.

UNITED STATES PATENT OFFICE. N

\VILLIAM E. \VILLIAMS, OF CHICAGO, ILLINOIS.

CELL-OAS E.

SPECIFICATION forming part of Letters Patent No. 549,286, dated November5, 1895. Application filed December 16, 1892. Serial No. 45 5,412. (Nomodel.)

To all whom it may concern.-

Be it known that 1, WILLIAM E. WIL- LIAMS, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented a new and useful Cell-Case, of which thefollowing is a specification.

My invention relates to cell-cases of the class in which the structureis formed by thrusting one set of strips of strawboard or the likethrough central openings in another set.

In the drawings, Figures 1 and 2 show, respectively, a secondary and aprimary strip, or a strip from each of the two sets necessary to form acell-case. Fig. 3 is a partial sectional view showing the manner ofuniting the strips of the two sets. Fig. 4 is a perspective View of aportion of a completed cell-case.

In the views, A is a secondary strip having in each edgesymmetrically-arranged, equal, and equidistant notches a, whose Width isapproximately equal to the thickness of the strawboard and whosedistance from each other is equal to the internal width of a cell.

B represents a primary strip of equalwidth, having parallel to its edgesand along each side of its middle a line of equidistant slits e, formingpairs, respectively, with the slits of the other identically similarline. From one slit to the other of each pair extends a slot 0, of aWidth approximately equal to the thickness of the board. These slots areequidistant; but the distance between them is greater than the uniformdistance between corresponding ends of successive slits in either line.The terminal slots of those nearest the two ends of the strip are at theouter ends of the slits which they connect, and from the difference inspacing just mentioned it necessarily follows that in passing toward themiddle of the strip the successive slots join the slits of each pair atregularly-increasing distances from the ends of the slits which arenearest the ends of the strip, and the spacing is, preferably, such thatthe increase is the same in passing from either end of the strip towardthe middle, and also such as to bringthe middle slot in the middle ofthe middle pair of slits. It is evident that of the gates or tongues 19b 21 11 &c., thus formed the gate 2) lies wholly upon the inner side ofthe terminal slot, or the last slot of the series at each end of thestrip, which has no gate upon the opposite side; that the other slotsall have gates upon both sides; that the entire length of the gate orgates at the several slots is the same, and that, therefore, when thegates are pushed aside the openings are all equal, and that theseveraluncut portions of the strip lying between the slots are equal,and hence that the cell-case is of uniform strength, although theterininal gates are only upon the side toward the middle of the strip.

In forming the cell-case from the two sets of strips the strips A arepartially rolled up laterally (see D E F G, Fig. 4,) and pushed throughthe strips B, the gates springing aside. When the notches aare in theplanes of the strips B, the rolled strips are released. They instantlyunroll, and as each resumes its plane form the corresponding gatesreturn to the planes of the strips B, and the two sets are thus securelyinterlocked in the manner shown in Fig. 4:.

WVhat I claim is 1. A cell case strip having parallel to its lateraledges and on each side of its middle a line of equidistant slits formingpairs, respectively, with the corresponding slits of the other line, andfurther having equidistant slots connecting the slits of each pair,respectively, but more distant from each other than the correspondingends of successive slits in each line, substantially as and for thepurpose set forth.

2. The combination with a set of strips having the equidistant centralslots perpendicular to but not reaching, their lateral edges and alsoprovided with equal slits perpendicular to said slots at their ends andextending upon one side only of theterminal slots but upon both sides ofthe remaining slots, of a set of laterally notched strips adapted to bepassed through the strips of the first set and to interlock with themwhen in proper position.

w. E. WILLIAMS.

\Vitnesses:

L. W. MURrHY, S. M. BROWN.

